Device for transmitting sound-waves.



R. NIRENBERG.

DEVICE FOR TRANSMITTING SOUND WAVES.

APPLIGATION IILED MAB.23, 1909.

929,623. Patented July 27, 1909.

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2A 2- I k 2 6 IN VENT I? g A E 4 WTNESSES or earth, namely such itself, in order to transmit them to the 40 inc osed by the 50 companying drawing in which UNITED STATES ROBERT NIRENBERG, OF ST. PETERSBURG, RUSSIA.

' DEV-10E FOR TRANSMITTING SOUND-WAVES.

vTo all whom it may concern:

Be it known that I, ROBERT NIRENBER a subject of the (lganof-R-ussiaj'fid res iding Russia, have invented 5 certain new and useful Improved Devices for Transmitting following is a specification.

The present invention relates to devices for transmitting sound-waves through water as are to beused for and an important obdevice in which a meis employed, an elastic the pressure-chamber submarine signaling, ject is to provide a chanical interrupter closure which closes 15 being periodically lifted under the influence of the pressure medium, which may be both gas and a liquid, so that oscillations are produced which are transmitted by the either to a diaphragm or to the hull of a ship water or earth. More particularly, the .present invention has for its object a constructional form in which the pressure-body can be adj usted, by

means of screw-threads, in the frame which serves simultaneously as the holder of the diaphragm, whereas the closure may be attached to the diaphragm by means of a balljoint in order that the closure may be ad justable, The pressure-body may, however, consist oftwo reciprocally adjustable parts, so that the mouth-piece of the pressure-body can be adjusted or, if necessary, be fitted to the closure which is connected .35 rigidly with the diaphragm. Further, it is particularly suitable to connect the frame oldmg the pressure-body by means of aring and the closure directly with the hull of the shi so that the part of the hull of the ship ring acts as a diaphragm. The closure may also pass through an orifice in the wall of the ship and be connected with an optionally large and powerful diaphragm arranged outside the latter. Lastly, a

speclal closure being omitted, the ressurebody maybe formed" of a larynxike diaphragm, i. e., one comprising two parts.

In order that the invention may be clearly understood reference will be made to the acseveral emodlments are represented by way of example, and in which:

Figure l is a section through a sender for Specification of Letters Patent. Application filed March 23, 1909.

closure Patented July 27, 1909. Serial No. 485,356.

[ producing soundewavemm the meaith qn'whieh apparatus the pressure-body I can be screwed into or is adjustable in the which serves as'holderfor the dia- I phragm; Fig.

structional form, nected by means phragm, and Fig. 3 is a like view of .a modified form; Fig. 4 is a section through another modified constructional form, in which the closure member extends in the wall of the ship and is connected with the diaphragm outside the latter.

Referring to the drawing and first particularly to Fig. 1, 1 is a frame which, for example, is firmly riveted or screwed to the wall A of the ship. In this frame there arranged adjustable by means of screw-threadsor in other manner a hollow body 2 sure-body which is connected with a pump 3; the latter is fed from a reservoir 4 and forces the medium, which may be a liquid or gas, into the body 2. On its inner side the pressure-body 2 isconnected with an exchangeable muff or socket 5, against the mouth of which the closure member 6lies, and care must be taken that the area of contact of the mouth-piece 5 with the closure 6 is as small as possible. In the constructional form shown in Fig. 1 this closure 6 is connected directly with the diaphragm 7 which is arranged fixed outside the frame 1. The frame 1 and the pressure body 2 together constitute a housing forming a chamber 8 which can be connected bya pipe 9 with the reservoir 4 in order to return to the reservoir again the mediumwhich collects in the chamber. Avalve or. stopcock 10 may be provided inthe pipe which connects the ump 3 in which theclosure is condevice may be operated for a shorter or longer eriod b o enin or closing thestop cock, wi hereby s igiials lilr bet, for example, may be sent.

he manner in which this form of the device operates is as follows: As soon as a fluid under pressure enters into the pressure-body 2 when the stopcock 10 is opened, the closure 5-6 is opened a little and some of the fluid passes out into chamber 8. In consequence of the elasticity of the diaphragm, however, the closure is then rendered tight agaln, opened again by the continued presused as a prese the Morse alphaof a ball-joint with the dia with the pressure-body 2, in order t at the reservoir 4. It is to sure of the fluid, and closed again by the diaphragm 7. This action repeats itself at short intervals as long as the pressure lasts, the consequence of which is that the diaphragm 7 is vibrated exceedingly ra idly, the number of vibrations per second being dependent on the amount 'of the pressure as well as-the diameter and strength of the diaphragm. By releasing and cutting off the pressure by means of a valve or stopcock 10 which can be rapidly closed and opened, the vibrations can be caused at optional intervals accordingto an optional system,'for' example corresponding to the Morse alphabet. The fluid which passes out when the closure 56 opens is returned by the pipe 9 to the be understood that air or gas may be employed instead of a liquid.

Further, it may The dia hragm 8 can be used directly to oscillate t e surrounding water or earth, the osform of sound-waves to great distances.

medium, the mouth of the mufl 5 wears away relatively quickl so that, since good operation is dependent on the closure being seated well at the mouth of the pressurebody, it is preferable to make the mufl 5 exchangeable which is readily possible'in the arrangement represented in Fig. 1.

Whereas inFig. 1 the closure 6 is connected directly with the diaphragm 7-, in the form according to Fig. 2 t e closure member 6 in combination with corresppnding pro ecting extensions 7 of the dia ragm .7 is formed as a ball-joint 11 whereby the possibility is afiorded of placing the closure 6- exactly in the orifice or contacting face of the muff or pressure-body 2.

In the exam le shown in Fig. 3 a specially the pressure-body 2 with,the

tight closure 0 closure 6 is likewise obtained in a manner which can be regulated. The pressure-body 2 is here formed of two spherically round parts 2 and 2 which are held togetilier by screw-bolts 12. By loosening the screwbolts on the one side and tightening the opposite bolts the mouth-piece 2? of the ressure-body can be varied in position wit regard 'to the closure 6 attached to the diaphragm 7 and be so placed that normally the closure 6 always ma es an absolutely tight joint.

- In the constructional form of the invention represented in Fig. 4 the closure 6 of the ressure-body 2 passes through a small or' ce B pin the wall A of the ship and is connected with an optionally large and strong diaphragm' 7 arranged outside the hull of the ship. -This construction is of great importance for submarine boats where it is im ortant to avoid all perforations in the wa of the boat or the perforations must be made so small and closed so tightly by other parts be transmitted inthe 'frame 1, which in be mentioned that, particularly when a liquid is used as the pressurethat, even in the case of considerable pressure of water, it is impossible for water to penetrate into the boat. That is the ease in the form shown in Fig. 4, since the opening B requires to be only just large enough to receive the closure 6, but is also perfectly closed toward the interior of the boat by the dia hragm 7 and by the frame 1. It is to be undbrstood that in all the constructional forms of the invention connected by the pipe 9 by way of a reservoir 4 with the pump 3 as clearly shown in dotted lines in Fig. 1.

Whereas in the constructional form shown in Fig. 4 the individual parts of the apparatus must be mounted'in 'vidually, the construc tion may also be such as shown in Fig. 1. The pressure-body 2 may not only be adjust able by means of screw-threads or in other manner in the frame 1, but it may also be made, for example cast, in one piece with the both cases would have the advantage that such a sender can be made,

the chamber '8 may be assembled and adjusted in the works ready for operation on the ship.

In the claims the word diaphragm is to be understood as referring to any structure or material capable of setting u in connection with the other elements 0 the claims vibrations o erative for this purpose.

What I c aim as my invention and desire to secure by Letters Patent is:

1. In a device for transmitting sound-' waves, the combination of a housing forming a chamber therein and provided with an orific, a vibrating diaphragmclosing one s de of said chamber, means connected to said diaphragm for normally closing said orifice, means for forcing a fluid through said orifice into said chamber, and means for permitting the fluid to exhaust from said chamber.

2. In 'a device for transmitting soundwaves, the combination of a frame, a pressure body adjustably mounted in said frame, and having, an aperture, a mouth-piece adjustably mounted in said aperture, a diaphragm attached to said frame and forming a chamber with said pressure bod and said frame, means connected with said pressure body for forcing fluid through said aperture and mouthpiece into said chamber, a closure in said chamber attached tosaid diaphragm and normally closing said mouth-piece, and

meansfor permitting the fluid to exhaust from said opening.

3. In a device for transmitting soundwaves, the combination of a frame having an exhaust opening therein and internal screwthreads at one end and a diaphragm attached thereto at the other, a pressure body having external screw threads and screwed into the screw threaded end of the frame and having a central aperture at its inner end, a mouth-piece adjustably screwed into said enlargement, a closure athaving an enlargement tached to said diaphragm at one end and nor- In testimony, that I claim the foregoing as mally fitting in and closing said mouth-piece, my invention, I have signed my name in and means attached to said pressure body for' presence of two subscribing Witnesses.

forcing a fluid through said aperture and said ROBERT NIRENBERG. 5 mouth-piece and into the chamber formed by Witnesses:

said diaphragm, said frameand said pressure JAS. R. HENY,

body. J OHN H. GROUT. 

